The new book is the definitive text on the Objective Structured Clinical Examination (OSCE), providing an easily accessible account of the breadth and depth of experience gained worldwide from its use in a wide range of contexts and in different phases of education. The lessons learned from these diverse experiences are included throughout the text. Used globally in all phases of education in the different healthcare professions, the OSCE was first described by the lead author, Harden, in 1975 and it is now the gold standard for performance assessment.